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Ultraviolet Irradiation

Municipal Water Supply

  1. M. Siddiqui

Published Online: 15 JUL 2005

DOI: 10.1002/047147844X.mw536

Water Encyclopedia

Water Encyclopedia

How to Cite

Siddiqui, M. 2005. Ultraviolet Irradiation. Water Encyclopedia. 1:469–470.

Author Information

  1. University of Utah, Salt Lake City, Utah

Publication History

  1. Published Online: 15 JUL 2005


Ultraviolet irradiation (UV) is a potential alternative to chlorination for drinking water disinfection. UV provides disinfection without producing the problematic disinfection by-products of chemical disinfectants such as chlorine. During retrofitting of UV to an existing potable water treatment process or during design of a new installation, there can be significant benefits in reexamining the overall disinfection strategy for the treatment plant and the water distribution system.


  • ultraviolet light;
  • disinfection;
  • germicidal properties;
  • actinometry;
  • photochemical;
  • quartz cell;
  • Giardia;
  • Cryptosporidium;
  • nephelometric turbidity units